CVE-2013-0795: Mozilla Firefox

High severity, CVSS 10.0. EPSS: 3.4% chance of exploitation in the next 30 days.

The System Only Wrapper (SOW) implementation in Mozilla Firefox before 20.0, Firefox ESR 17.x before 17.0.5, Thunderbird before 17.0.5, Thunderbird ESR 17.x before 17.0.5, and SeaMonkey before 2.17 does not prevent use of the cloneNode method for cloning a protected node, which allows remote attackers to bypass the Same Origin Policy or possibly execute arbitrary JavaScript code with chrome privileges via a crafted web site.

Affected products

• Mozilla Firefox: up to and including 19.0.2; version 19.0 only; version 19.0.1 only; version 17.0 only; version 17.0.1 only; version 17.0.2 only; …
• Mozilla Seamonkey: up to and including 2.17; version 2.0 only; version 2.0.1 only; version 2.0.2 only; version 2.0.3 only; version 2.0.4 only; …
• Mozilla Thunderbird: version 17.0 only; version 17.0.1 only; version 17.0.2 only; version 17.0.3 only; version 17.0.4 only
• Mozilla Thunderbird ESR: version 17.0 only; version 17.0.1 only; version 17.0.2 only; version 17.0.3 only; version 17.0.4 only

Published 2013-04-03. Last modified 2026-06-16.